Proceedings of a conference on highway traffic regulation held at Yale university under the auspices of the Highway and highway transport education committee, May 23, 1921
By: ed. by C. J. Tilden.
Contributors: Tilden, Charles Joseph, 1873- ed.; Highway Education Board.
Publisher: The Committee
Published: 1921
Place of publication: Washington D.C
Language: eng
Number of pages: 46
Subjects: Traffic regulations -- United States.; Roads -- Study and teaching.; Roads -- United States.
Other titles: Highway traffic regulation.